Home / 470,272.78-648,981.12-255,417.04

Finding the Fourth Proportional to 470,272.78, 648,981.12 and 255,417.04

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Solution

The fourth proportional to 470,272.78, 648,981.12 and 255,417.04 is: 352,478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,272.78 : 648,981.12 = 255,417.04 : x
  2. Step 2: Convert to fraction form
    470,272.78/648,981.12 = 255,417.04/x
  3. Step 3: Cross multiply
    470,272.78x = 648,981.12 × 255,417.04
  4. Step 4: Simplify right side
    470,272.78x = 165,760,836,686.29
  5. Step 5: Solve for x
    x = 165,760,836,686.29/470,272.78
  6. Step 6: Final answer
    x = 352,478.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.